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pupfish

[ puhp-fish ]

noun

, plural (especially collectively) pup·fish, (especially referring to two or more kinds or species) pup·fish·es.
  1. any of several tiny, stout killifishes of the genus Cyprinodon, inhabiting marshy waters in arid areas of western North America: several species are endangered.

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Word History and Origins

Origin of pupfish1

First recorded in 1945–50; pup + fish

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